The NEHGS's e-mail notification featured "The Riobard O'Dwyer Papers."
"In 2012, NEHGS acquired the Riobard O'Dwyer Papers, which document the families of the Beara Peninsula in southwest Ireland."
"The processing of the Riobard O'Dwyer Papers (Mss 1097) was completed in March 2013 and the collection is now open for use by NEHGS members. A more detailed description of this collection will be published in the spring 2013 issue of American Ancestors magazine."
This collection should be helpful in my research. I referenced Mr. O'Dwyer's research in this blog post.
Nana's MI & Irish Roots
Since Nana (my son-in-law's grandmother) just celebrated her 89th birthday recently [now deceased].... With perusing the Beara-L Rootsweb archives....there's a reference to Nana's grandparents, James & Mary (Kelly) Green. Here's a website [now a broken link] that should help in investigating Nana's Irish roots by R. O'Dwyer.